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Author Topic: Canadian Arctic Archipelago  (Read 8619 times)

Espen

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Canadian Arctic Archipelago
« on: June 23, 2013, 10:26:10 PM »
Mc Clure Strait, the summer action is on:

Have a ice day!

Espen

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Re: Canadian Arctic Archipelago
« Reply #1 on: June 23, 2013, 10:29:18 PM »
And Mc Clure Strait today:
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Whit

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Re: Canadian Arctic Archipelago
« Reply #2 on: June 23, 2013, 10:32:53 PM »
A few days ago I was having a look around Worldview and Kind of Blue by Miles Davis just found it's way to the speakers. in particular stood out.
Is it progress if a cannibal eats with a fork?

Whit

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Re: Canadian Arctic Archipelago
« Reply #3 on: June 23, 2013, 10:39:17 PM »
It's quite a difference in just a week.
June 16:


The main fracture is clearly visible June 10, but if I remember correctly it has been there for a while, just refrozen with fres ice a couple of times.
« Last Edit: June 23, 2013, 10:45:35 PM by Whit »
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ananthapriya

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Re: Canadian Arctic Archipelago
« Reply #4 on: July 30, 2013, 07:10:27 AM »
I'd also like to say that our selection in a possible place in Canada is not just limited to these islands, I just believed it was exciting facts.
dan

Neven

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Re: Canadian Arctic Archipelago
« Reply #5 on: July 30, 2015, 10:53:15 PM »
Yes, this thread also already existed.   ;)

The fast ice in the Peary and Sverdrup Channels, and the Prince Gustaf Adolf Sea is breaking up:

« Last Edit: July 30, 2015, 11:09:39 PM by Neven »
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Neven

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Re: Canadian Arctic Archipelago
« Reply #6 on: July 31, 2015, 09:34:40 AM »
Over on another thread Friv asked:

Quote
How is their still ice in the CAA left?

Resolute which is a town on the Southern side of a tiny  island surrounded by ice has been scorched all July.

The past week winds have been almost exclusively out of the ESE to SSE right of the ice pack.

Temps have been WWAAAYYYY above normal even with that.


Is there like no bottom melt in the CAA arrive ml since ice is land locked most of the summer?

Good question. I also wonder why it has taken so long, even though things are changing really fast now. Maybe Wayne Davidson has an answer.
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Laurent

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Re: Canadian Arctic Archipelago
« Reply #7 on: July 31, 2015, 10:07:14 AM »
My guess is there is permafrost all around above sea level and below, it takes time for the heat to be absorbed.
The winds are a bit blocked by the islands. If we have seen opening in the past, this year will see total melt down of all the islands which should prepare things for next year melting.

plinius

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Re: Canadian Arctic Archipelago
« Reply #8 on: July 31, 2015, 10:31:55 AM »
I think this image is partly answering the question:
https://earthdata.nasa.gov/labs/worldview/?p=arctic&l=MODIS_Aqua_CorrectedReflectance_TrueColor%28hidden%29,MODIS_Terra_CorrectedReflectance_TrueColor,Reference_Labels%28hidden%29,Reference_Features%28hidden%29,Coastlines&t=2015-07-28&v=-2377209.1844744533,-1987547.1404564483,399878.81552554667,-748507.1404564483

If you zoom into the north west passage, you see this lovely shallow fog layer flowing east to west - it has been the usual pattern of circulation during the past weeks. So, while the islands of the archipelago stick out, and the Sun breaks the inversion on warm ground, the passage itself has this autonomous cool airflow.

P.S.: Resolute is on the northern shore, so Coriolis force helps there to keep the flow out at sea.

greatdying2

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Re: Canadian Arctic Archipelago
« Reply #9 on: August 01, 2015, 12:09:24 AM »
Maybe the ice was just really thick to begin with?
The Permian–Triassic extinction event, a.k.a. the Great Dying, occurred about 250 million years ago and is the most severe known extinction event. Up to 96% of all marine species and 70% of terrestrial vertebrate species became extinct; it is also the only known mass extinction of insects.

ChrisReynolds

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Re: Canadian Arctic Archipelago
« Reply #10 on: August 02, 2015, 12:13:12 PM »
Actually CAA is behaving quite normally.



Strong drops are more typical in August.

Andreas T

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Re: Canadian Arctic Archipelago
« Reply #11 on: August 03, 2015, 12:54:25 AM »
A pretty shot of the fog flowing into the CAA from today

AmbiValent

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Re: Canadian Arctic Archipelago
« Reply #12 on: August 07, 2015, 10:59:25 PM »
Compared to one week ago, the northern Archipelago seems to turn into a mess, although some of what look like cracks in the western part of the northern Archipelago may just be clouds or their shadows...
Bright ice, how can you crack and fail? How can the ice that seemed so mighty suddenly seem so frail?

Laurent

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Re: Canadian Arctic Archipelago
« Reply #13 on: August 07, 2015, 11:06:57 PM »
There won't be much left at the end of August...

AmbiValent

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Re: Canadian Arctic Archipelago
« Reply #14 on: August 07, 2015, 11:09:30 PM »
It will probably replaced by more ice from the north - but that ice currently looks like a recipe for rotten ice in next year.
Bright ice, how can you crack and fail? How can the ice that seemed so mighty suddenly seem so frail?

AmbiValent

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Re: Canadian Arctic Archipelago
« Reply #15 on: August 31, 2015, 11:10:24 PM »
It not only seems that Laurent was right, but the remaining ice is drifting northwards instead of southwards. How unlikely is that (compared to the past)?
Bright ice, how can you crack and fail? How can the ice that seemed so mighty suddenly seem so frail?